High Accuracy 2.5A Low-Voltage AOT Synchronous Buck Regulator

20/06/2025

The KTB8316 is a precision adaptive-on-time (AOT) step-down (buck) switching regulator. The device has class-leading accuracy, fast transient response and high efficiency. Additional features include current, over/under voltage and thermal protections.

The AOT control along with a thermally enhanced PwrCSP™ package provides a best-in-class solution with reduced size external components for mobile and non-mobile applications. The step-down buck regulator operates over a user set 0.3V to 3.3V output range. Please review the Part Number Options Table to determine the output range for each product option.

Switching frequency options of 1MHz, 2MHz and 4MHz are available with Forced-PWM or Auto-skip mode at light loads. The KTB8316 is available in RoHS and Green compliant PwrCSP™ HP-WLCSP-6 Package

Main Features

Operating Range
- 2.5V to 5.5V Input Voltage Range
- Output voltage options from 0.3V to 3.3V (Please review the Part Number Options Table to determine the output range for each product option)
- Up to 2.5A Output Current
Adaptive On-Time Control
- Fast and accurate transient response
- Seamless transitions between Auto-skip and PWM operation
- Optimized for smallest solution size and external components
Integrated High-Side / Low-Side FETs
±0.75% Output Voltage Accuracy
Peak Efficiency up to 90% for VOUT = 1.8V at 4MHz
39μA quiescent supply current
Switching frequency options 1MHz, 2MHz and 4MHz
Forced-PWM or Auto-Skip Modes
Over-Current and Short-Circuit protection
UVLO and Thermal Shutdown Protected
Active high Enable pin compatible with 1.2V logic
Active Output Discharge in shutdown mode
-40°C to 85°C Operating Temperature Range
PwrCSP™ HP-WLCSP-6 1.464mm x 1.064mm

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DC/DC converters

Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power and protection semiconductors across consumer, communications, industrial, automotive and enterprise markets, to deliver protected solutions tolerant of real-world fault conditions.

Documents

Kinetic KTB8316 04b Datasheet

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